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DOI	10.1007/s41207-016-0012-7
	Effects of salts on phosphorus adsorption in alkalize Tunisian soil
	Beji, R.; Hamdi, Wissem; Kesraoui, A.; Seffen, Mongi
通讯作者	Hamdi, W ; Seffen, M
来源期刊	EURO-MEDITERRANEAN JOURNAL FOR ENVIRONMENTAL INTEGRATION
ISSN	2365-6433
EISSN	2365-7448
出版年	2017
卷号	2 期号:1
英文摘要	Many previous studies have been conducted in an attempt to determine phosphorus (P) adsorption in soil. Often, these studies cannot be compared, because the reports did not give a satisfactory characterization of the dynamics of soil P in saline conditions. In our experiment, three salts extracts (CaCl2, NaCl and KCl) with the same concentration (0.01 M) were used to determine the amount of P adsorption in Solonetz soil samples of the semi-arid areas of Kondar region (Tunisia). Also, we focused on the influence of contact time on P-Salts adsorption in the alkalize soil. The analytic data were approached from the following kinetics' models: pseudo first order, pseudo second order and Elovich model. Results obtained showed that salts addition increased significantly the amount of P adsorption with the following order of salts extracts (P-CaCl2 > P-NaCl > P-KCl > P). The mechanism of phosphate ions adsorption by soil was studied using IR spectroscopy. Infrared spectral characteristics of the amorphous material indicated that the adsorption is due to exchange phenomena of phosphate ions with surface groups. It was also demonstrated that the addition of CaCl2 salt caused a shift and an increase of OH, Si-O (Si-O-Si, Si-O-Al) and Al-OH absorption bands which favored the adsorption of P ions. Moreover, the second-order model was shown to be the best fit for describing phosphorus adsorption associated with different salts, as seen from the correlation coefficient R2 which ranged from 0.98 to 0.99.
英文关键词	Phosphorus Soil Adsorption Kinetics Salts Infrared spectral
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000459072300002
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
Scopus学科分类	Gabes Univ, Higher Inst Sci & Tech Waters Gabes, Gabes, Tunisia.
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332650
作者单位	[Beji, R.; Hamdi, Wissem; Kesraoui, A.; Seffen, Mongi] Sousse Univ, Higher Sch Sci & Technol Hammam Sousse, Lab Energy & Mat LabEM Lr11ES34, FP4BATIW, Sousse, Tunisia; [Hamdi, Wissem] Gabes Univ, Higher Inst Sci & Tech Waters Gabes, Gabes, Tunisia; [Beji, R.] Monastir Univ, Fac Sci Monastir, Monastir, Tunisia
推荐引用方式 GB/T 7714	Beji, R.,Hamdi, Wissem,Kesraoui, A.,et al. Effects of salts on phosphorus adsorption in alkalize Tunisian soil[J],2017,2(1).
APA	Beji, R.,Hamdi, Wissem,Kesraoui, A.,&Seffen, Mongi.(2017).Effects of salts on phosphorus adsorption in alkalize Tunisian soil.EURO-MEDITERRANEAN JOURNAL FOR ENVIRONMENTAL INTEGRATION,2(1).
MLA	Beji, R.,et al."Effects of salts on phosphorus adsorption in alkalize Tunisian soil".EURO-MEDITERRANEAN JOURNAL FOR ENVIRONMENTAL INTEGRATION 2.1(2017).